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награды
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- Параметры
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DH380 Portable Hardness Tester is a kind of high-tech grade portable hardness testing instrument,adopting low-power design idea,long life span chargeable NI-MH battery and intelligent USB interface, Which is widely used in various metal material;it equips with built-in mini-printer, which can easily print out testing result on-site; moreover, Large colorful LCD digital screen with 128×64 dot matrix enables it to display not only figure, but also character. Customers who are in need of directly printing data out on-site, and enjoying a digital as well as high-tech testing feel, this is the best choice.
Working Principle:
When the impact body,with a certain weight,impacts against the specimen surface under the action of spring force,leeb hardness comes from the ratio of the impacting velocity(VA) and the rebounding velocity(VB) of the impact body by the moment the spherical testing tip is located at 1mm point from specimen surface.
With principle of electromagnetism,the permanent magnet in the coil of impact device produced an induced voltage, which is in proportion to the impact body velocity.
The leeb hardness values are calculated by the following formula:
HL=1000X(Vb/Va)
Main Application:
Large colorful true OLED disply,wonderfully show the datas
Die cavity of molds
Bearings and other parts
Failure analysis of pressure vessel, steam generator and other equipment
Heavy work piece
The installed machinery and permanently assembled parts
Testing surface of a small hollow space
Material identification in the warehouse of metallic materials
Rapid testing in large range and multi-measuring areas for large-scale work piece
Working Principle:
When the impact body,with a certain weight,impacts against the specimen surface under the action of spring force,leeb hardness comes from the ratio of the impacting velocity(VA) and the rebounding velocity(VB) of the impact body by the moment the spherical testing tip is located at 1mm point from specimen surface.
With principle of electromagnetism,the permanent magnet in the coil of impact device produced an induced voltage, which is in proportion to the impact body velocity.
The leeb hardness values are calculated by the following formula:
HL=1000X(Vb/Va)
Main Application:
Large colorful true OLED disply,wonderfully show the datas
Die cavity of molds
Bearings and other parts
Failure analysis of pressure vessel, steam generator and other equipment
Heavy work piece
The installed machinery and permanently assembled parts
Testing surface of a small hollow space
Material identification in the warehouse of metallic materials
Rapid testing in large range and multi-measuring areas for large-scale work piece
Working Principle:
When the impact body,with a certain weight,impacts against the specimen surface under the action of spring force,leeb hardness comes from the ratio of the impacting velocity(VA) and the rebounding velocity(VB) of the impact body by the moment the spherical testing tip is located at 1mm point from specimen surface.
With principle of electromagnetism,the permanent magnet in the coil of impact device produced an induced voltage, which is in proportion to the impact body velocity.
The leeb hardness values are calculated by the following formula:
HL=1000X(Vb/Va)
Main Application:
Large colorful true OLED disply,wonderfully show the datas
Die cavity of molds
Bearings and other parts
Failure analysis of pressure vessel, steam generator and other equipment
Heavy work piece
The installed machinery and permanently assembled parts
Testing surface of a small hollow space
Material identification in the warehouse of metallic materials
Rapid testing in large range and multi-measuring areas for large-scale work piece
Working Principle:
When the impact body,with a certain weight,impacts against the specimen surface under the action of spring force,leeb hardness comes from the ratio of the impacting velocity(VA) and the rebounding velocity(VB) of the impact body by the moment the spherical testing tip is located at 1mm point from specimen surface.
With principle of electromagnetism,the permanent magnet in the coil of impact device produced an induced voltage, which is in proportion to the impact body velocity.
The leeb hardness values are calculated by the following formula:
HL=1000X(Vb/Va)
Main Application:
Large colorful true OLED disply,wonderfully show the datas
Die cavity of molds
Bearings and other parts
Failure analysis of pressure vessel, steam generator and other equipment
Heavy work piece
The installed machinery and permanently assembled parts
Testing surface of a small hollow space
Material identification in the warehouse of metallic materials
Rapid testing in large range and multi-measuring areas for large-scale work piece
- 128×64 dot matrix colorful Large Digital screen, displaying not only figures,but also characters;
- 6 Exchangeable hardness scales: HHRB, HRC, HV, HB, HS, HL, 3 types of strength values, Suitable to measure the hardness of all metallic materials;
- 7 impact devices available for special usage, automatically identify the type of impact devices;
- 600 groups storage capacity, including single measured value, average value, testing data, impact direction, impact times, material and hardness scale etc;
- Built-in mini-printer, enable to print testing result on-site;
- Equips with USB port, standard along with multi-functions(query,saving,statistics) data proceeding software, enable to connect to PC and make further data analysis;
- Humanized user calibration function,also support software calibration;
- Freely set limited hardness value,AUTO alarming when over-limited;
- NI-MH rechargeable battery, continuous working time of no less than 250 hours after full charge(EL off and no printing);
- Auto power off set to save energy;
- Excellent after-sale service system for high quality products---1 years’ guarantee and all life maintenance. Easy to buy and convenient to use.
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Testing Range
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in Steel:HLD(170-960),HRC(20-68.5),HRB(38.4-99.6),HRA(59.1-85.8),HB(127-651),HV(83-976),HS(32.2-99.5). |
| Indication Error | HLD:±5 HRC:±1 HB:±4 |
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Testing Direction
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360°
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Hardness Scale
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HL,HB,HRB,HRC,HRA,HV,HS.
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Display Mode
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128×64 Dot Matrix LCD
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Data Memory
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600 groups max.(relative to impact times 32~1) |
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Printing Paper
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Width:(57.5±0.5)mm;Dia.:30mm |
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Battery Pack
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6V NI-MH
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Battery Charger
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9V/1000mA
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Continuous Working Hours
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about 250 hours(With backlight off, no printing) |
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Communication Interface
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USB2.0
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Dimension
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37x30x12cm(LxWxH)
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Packing Weight
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6KG
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Error and Repeatability of Displayed Value:
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No.
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Type of impact device
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Hardness value of Leeb standard hardness block
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Error of displayed value
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Repeatability
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1
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D
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760±30HLD
530±40HLD
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±6 HLD
±10 HLD
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6 HLD
10 HLD
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2
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DC
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760±30HLDC
530±40HLDC
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±6 HLDC
±10 HLDC
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6 HLD
10 HLD
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3
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DL
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878±30HLDL
736±40HLDL
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±12 HLDL
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12 HLDL
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4
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D+15
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766±30HLD+15
544±40HLD+15
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±12 HLD+15
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12 HLD+15
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5
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G
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590±40HLG
500±40HLG
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±12 HLG
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12 HLG
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6
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E
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725±30HLE
508±40HLE
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±12 HLE
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12 HLE
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7
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C
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822±30HLC
590±40HLC
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±12 HLC
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12 HLC
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Testing Range in Different Materials with Different Impact Devices:
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Material
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Method
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Impact device
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D/DC
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D+15
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C
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G
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E
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DL
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Steel and cast steel
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HRC
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20～68.5
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19.3～67.9
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20.0～69.5
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22.4～70.7
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20.6～68.2
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HRB
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38.4～99.6
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47.7～99.9
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37.0～99.9
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HRA
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59.1～85.8
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61.7～88.0
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HB
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127～651
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80～638
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80～683
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90～646
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83～663
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81～646
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HV
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83～976
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80～937
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80～996
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84～1042
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80～950
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HS
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32.2～99.5
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33.3～99.3
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31.8～102.1
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35.8～102.6
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30.6～96.8
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Cold work
tool steel
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HRC
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20.4～67.1
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19.8～68.2
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20.7～68.2
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22.6～70.2
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HV
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80～898
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80～935
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100～941
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82～1009
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Stainless steel
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HRB
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46.5～101.7
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HB
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85～655
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HV
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85～802
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Grey cast iron
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HRC
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HB
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93～334
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92～326
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HV
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Nodular cast iron
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HRC
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HB
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131～387
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127～364
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HV
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Cast aluminum alloys
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HB
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19～164
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23～210
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32～168
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HRB
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23.8～84.6
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22.7～85.0
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23.8～85.5
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BRASS(copper-zinc alloys)
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HB
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40～173
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HRB
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13.5～95.3
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BRONZE(copper-aluminum/tin alloys)
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HB
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60～290
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Wrought copper alloys
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HB
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45～315
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Testing Parameter of Impact Devices:
Specification of Supporting Rings:
A
Chinese
Deutsch
Espanol
Francais
Italiano
Portugues
Japanese
Korean
Arabic
Russian